Night Owl's SPC-12BNCF is a 12 pack of BNC-BNC (female to female) connectors which will allow you to easily extend the length of any BNC video cable. Now you can go the extra distance guaranteeing your cameras will always be connected. Key Features: Extend the length of any BNC Cable; Total of 12 BNC Cable Couplers (Female to Female); For CCTV BNC Video Cables; 24/7/365 Tehnical and Web Support